Das Periodensystem der Elemente online
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Nuklide nach Selektion gefunden: 27
Nuklid
Level
(MeV)
Atommasse (u)
Spin
% nat.
Halbwertszeit
Zerfall
%
144
I
53
0
143.94999
-1
300 Nanosekunden (ns)
β
-
>0%
nβ
-
>0%
144
Xe
54
0
143.93851
0
388 Millisekunden (ms)
β
-
97%
nβ
-
3%
144
Cs
55
0
143.932077
+1
994 Millisekunden (ms)
β
-
96.8%
nβ
-
3.2%
144m
Cs
55
0.3
143.932109
+4
unbekannt
it
100%
144
Ba
56
0
143.922953
0
11.5 Sekunden
β
-
96.4%
nβ
-
3.6%
144
La
57
0
143.9196
-3
40.8 Sekunden
β
-
100%
144
Ce
58
0
143.913647
0
284 Tage 21 Stunden
β
-
100%
144
Pr
59
0
143.913305
0
17 Minuten 16.8 Sekunden
β
-
100%
144m
Pr
59
0.059
143.913369
-3
7 Minuten 12 Sekunden
it
99.93%
β
-
0.07%
144
Nd
60
0
143.910087
0
23.8
2.29 Billiarden Jahre
α
100%
144
Pm
61
0
143.912591
-5
363 Tage
ε
100%
144m
Pm
61
0.8409
143.913494
+9
780 Nanosekunden (ns)
it
100%
144m
Pm
61
8.5958
143.921819
+27
2.7 Mikrosekunden (μs)
it
100%
144
Sm
62
0
143.911999
0
3.07
stabil
144m
Sm
62
2.3236
143.914494
+6
880 Nanosekunden (ns)
it
100%
144
Eu
63
0
143.918817
+1
10.2 Sekunden
ε
100%
144m
Eu
63
1.1276
143.920027
-8
1 Mikrosekunden (μs)
it
100%
144
Gd
64
0
143.922963
0
4 Minuten 28.2 Sekunden
ε
100%
144
Tb
65
0
143.933045
+1
1 Sekunden
ε
100%
144m
Tb
65
0.3969
143.933471
-6
4.25 Sekunden
it
66%
ε
34%
144m
Tb
65
0.4762
143.933556
-8
2.8 Mikrosekunden (μs)
it
100%
144m
Tb
65
0.5172
143.9336
+9
670 Nanosekunden (ns)
it
100%
144m
Tb
65
0.5445
143.93363
+10
200 Nanosekunden (ns)
it
100%
144
Dy
66
0
143.939254
0
9.1 Sekunden
ε
>0%
pε
>0%
144
Ho
67
0
143.95148
-5
700 Millisekunden (ms)
ε
>0%
pε
>0%
144m
Ho
67
0.2653
143.951765
+8
506 Nanosekunden (ns)
it
100%
144
Er
68
0
143.96038
0
400 Millisekunden (ms)
ε
>0%
pε
>0%
p
>0%